UPI error code · Bank down
UPI error U28: Bank or PSP technical issue
PhonePe maps U28 to an issuing-bank technical error. Other NPCI tables list it as PSP not available. Either the payer's bank or the app's payment service provider timed out on the switch.
Apps may show it as: “psp not available”, “bank technical”, “server down”
- Who declined it
- Payer's bank
- Type
- Bank down
- Money debited?
- Debit possible — check UTR
- Refund
- If debited: auto-reversal by T+1 / T+5
Is money deducted on UPI error U28?
Debit possible — check UTR. If debited: auto-reversal by T+1 / T+5. Copy the 12-digit UTR and do not pay the same bill again while it is pending.
If the bank SMS shows a debit but the payee was not paid, RBI requires auto-reversal by T+1 working day for transfers and T+5 for merchant payments, with ₹100 a day compensation after that. See the refund timelines.
How to fix UPI error U28
Retry after 10–15 minutes, ideally on mobile data instead of congested Wi-Fi. If it persists, try a second UPI app linked to the same account.
Shopkeepers: is U28 a problem with my QR?
A burst of U28s usually means one bank or PSP is degraded, not your QR.
Never release goods on a green screenshot alone. Match the UTR in your bank SMS, ledger or soundbox.
If it keeps failing
- Open the failed payment in the app and copy the 12-digit UTR.
- Use Raise issue or Check status in the app first.
- Then call your bank with the UTR, amount and time. NPCI's UPI helpdesk is 1800-120-1740.
- After 30 days without a fix, complain on the RBI ombudsman portal, cms.rbi.org.in.
Related error codes
Last reviewed 26 August 2026. Meaning based on: PhonePe PG: BANK_TECHNICAL_ISSUE; Zerodha: PSP Not Available. Apps word codes differently, so if your bank describes U28 another way, trust the bank and keep the UTR.
Sources: PhonePe Payment Gateway error codes · Zerodha NPCI UPI reason codes · RBI TAT for failed UPI (DPSS.CO.PD No.629/02.01.014/2019-20)